4-Wire Internal Resistance Tester YR1035/YR1030 Battery Internal Resistance Test Instrument 100V Electric Vehicle Group 18650 ,Accurate Battery Tester

True 4-wire AC sinusoidal measurements effectively refrain the effects of test leads and contact resistance. Two function interfaces, battery sorting function. Built-in battery, phone recharger charging, low power consumption + multiple power saving options. The test range is up to 200 ohms with a minimum resolution of 0.01 milliohms and less than 5 milliohms. Press HOLD to enable the ZR function to measure internal resistance as low as 0.30-0.50 milliohms.